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Модифицирование индием Fe/MgAl₂O₄ катализатора гидрирования СО
- Authors: Панкина Г.В.1,2, Харланов A.Н.1, Чернавский П.A.1,2,3, Маслаков К.И.1, Шумянцев A.В.1,4,5
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Affiliations:
- Московский государственный университет имени М. В. Ломоносова
- Институт нефтехимического синтеза им. А. В. Топчиева РАН
- Институт органической химии им. Н. Д. Зелинского РАН
- Всероссийский институт научной и технической информации РАН (ВИНИТИ РАН) Москва, 119991
- Москва, 125190
- Issue: Vol 98, No 11 (2024)
- Pages: 67-78
- Section: ХИМИЧЕСКАЯ КИНЕТИКА И КАТАЛИЗ
- Submitted: 29.05.2025
- Published: 15.11.2024
- URL: https://vietnamjournal.ru/0044-4537/article/view/681014
- DOI: https://doi.org/10.31857/S0044453724110083
- EDN: https://elibrary.ru/EZJSWU
- ID: 681014
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Fig. 1. Temperature-programmed reduction in a 5% H2/Ar gas mixture and the dependence of the hydrogen absorption rate dH₂/dT on the temperature of Fe-containing catalysts (a): 1 – Fe/S, 2 – Fe&1In/S and 3 – Fe&5In/S, approximation of the experimental profile by Gaussian peaks using the Fe/S sample as an example (b).
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Fig. 2. Calculated parameters of the Gaussian components in the TPR spectra in the 5% H2/Ar gas mixture of Fe/S, Fe&1In/S and Fe&5 In/S catalysts: a – areas of 1–3 peaks A in relative units, b – temperatures of the maxima of 1–3 peaks Tmax in °C.
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Fig. 3. Temperature-programmed reduction (a) in a 5% H₂/Ar gas mixture with in situ magnetization recording: 1 – Fe/S, 2 – Fe&1In/S and 3 – Fe&5In/S, b – thermomagnetic curve in argon for a Fe&5In/S sample pre-reduced to 400°C in a 5% H₂/Ar mixture.
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Fig. 4. DSC curves (a) for samples: 1 – Fe/S, 2 – Fe&1In/S, 3 – Fe&5In/S; ion currents for m/z = 30 (NO+), m/z = 44 (N₂O+), m/z= 46 (NO₂+), b – Fe/S, c – Fe&1In/S and d – Fe&5In/S.
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Fig. 5. Survey XPS spectra (a), normalized Fe₂p-XPS spectra (b), In3d-XPS spectra (c) of samples: 1 – Fe/S, 2 – Fe&1%In/S, 3 – Fe&5%In/S.
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Fig. 6. Difference IR spectra of CO adsorbed at room temperature on catalysts: a – Fe/S, b – Fe&1%In/S, c – Fe&5%In/S. CO pressure: 5 (1), 20 (2), 50 Torr (3).
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